Home / 489,515.13-675,495.45-271,735.56

Finding the Fourth Proportional to 489,515.13, 675,495.45 and 271,735.56

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Solution

The fourth proportional to 489,515.13, 675,495.45 and 271,735.56 is: 374,975.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,515.13 : 675,495.45 = 271,735.56 : x
  2. Step 2: Convert to fraction form
    489,515.13/675,495.45 = 271,735.56/x
  3. Step 3: Cross multiply
    489,515.13x = 675,495.45 × 271,735.56
  4. Step 4: Simplify right side
    489,515.13x = 183,556,134,383.20
  5. Step 5: Solve for x
    x = 183,556,134,383.20/489,515.13
  6. Step 6: Final answer
    x = 374,975.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.